| |
| * = $0000 |
| L0000 |
| STX $180B ; ACR |
| LDA $BA,X |
| STA $1806,X ; T1 Latch Low, T1 Latch Hi, T2 Low, T2 Hi, and shift register |
| INX |
| CPX #$05 |
| BCC $0000 |
| BCS $0049 |
| ; T1 Latch is set to $45A5 |
| ; T2 Latch/Counter is set to $6505 |
| ; Shift Register is set to $E5 |
|
|
| *= $0049 |
| L0049 |
| LDX #$04 |
| LDA $BA,X |
| STA $53 |
| LDA #$C7 |
| STA $54 ; 0051 |
| SBC $00 |
| EOR $1808 ; T2 Low |
| ADC $1806 ; T1 Latch Low |
| AND $1809 ; T2 Hi |
| EOR $1807 ; T1 Latch Hi |
| STA $180A ; Shift Register 0061 |
| SBC $1808 ; T2 Low |
| ADC $1806 ; T1 Latch Low |
| STA $1C0A ; VIA2 Shift Register |
| DEC $54 |
| BNE $0053 |
| DEX ; 0071 |
| BPL $0053 |
| LDY #$00 |
| LDX #$03 ; 0076 |
| LDA ($D8),Y |
| CLC |
| EOR $C8,X ; 007b |
| STA $C8,X |
| ADC $CC,X |
| STA $CC,X |
| DEX |
| BPL $007B |
| INY |
| BNE $0076 |
| LDX #$07 |
| LDA #$20 |
| STA $180B ; ACR |
| NOP |
| NOP |
| NOP |
| NOP |
| NOP |
| NOP |
| NOP |
| NOP |
| NOP |
| NOP |
| NOP |
| NOP |
| LDA $1807 ; T1 Latch Hi These 4 should eventually contain the values 45 00 4B A7. |
| STA $0100 |
| LDA $1808 ; T2 Low |
| STA $0101 |
| LDA $1809 ; T2 Hi |
| STA $0102 |
| LDA $180A ; Shift Register |
| STA $0103 |
| LDA #$44 |
| STA $0104 |
| NOP |
| NOP |
| NOP |
| - BNE - |
|
|
| * = $00BA |
| |
| .byte $a5, $45, $05, $65, $e5, $d1 |
| .byte $0e, $03, $6a, $de, $ba, $ea, $05, $00, $00, $00, $00, $00, $00, $00, $00, $00 |
| .byte $36, $01, $2a, $2f, $28, $cb, $a3, $a7, $00, $2b, $00, $00, $00, $00, $00, $00 |
| .byte $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $03, $00, $19, $19, $19 |
| .byte $16, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00, $00 |
|
|
